package cn.edu.csust.coursecard.utils;

import org.jetbrains.annotations.NotNull;
import org.springframework.beans.BeansException;
import org.springframework.context.ApplicationContext;
import org.springframework.context.ApplicationContextAware;
import org.springframework.stereotype.Component;

@Component
public class ApplicationContextProvider implements ApplicationContextAware {
    private static ApplicationContext applicationContextSpring;

    @Override
    public synchronized void setApplicationContext(@NotNull ApplicationContext applicationContext) throws BeansException {
        applicationContextSpring = applicationContext;
    }

    /**
     * 通过class 获取Bean
     */
    public static <T> T getBean(Class<T> clazz) {
        return applicationContextSpring.getBean(clazz);
    }

}
